Biological Sciences Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

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Biological Sciences Interview Questions

Questions Answers Views Company eMail

When X-Ray photons collide with electrons (a) They slow down (b) Their mass increases (c) Their wave length increases (d) Their energy decreases.

Wipro,

1 6901

An electron emits energy (a) Because its in orbit (b) When it jumps from one energy level to another (c) Electrons are attracted towards the nucleus (d) The electrostatic force is insufficient to hold the electrons in orbits.

Wipro,

1 3564

How many bonds are present in CO2 molecule?

Wipro,

2 9446

In a balanced chemical equation (a) Atoms are conserved (b) Molecules are conserved (c) Moles are conserved (d) Reactant and product molecules are preserved.

Wipro,

1 22804

How many grams of NaOH will react with 0.2 equivalent of HCl? (a) 0.59 (b) 0.285 (c) 1.18 (d) none of these.

Wipro,

2 6198

Which of the following is least acidic (a) Ortho-cresol (b) Para-cresol (c) Phenol (d) Meta-cresol.

Wipro,

1 4520

In Reimer-Tiemann?s reaction, the reaction intermediate is (a) Carbene (b) Dichloro carbene (c) Carbonion (d) Carbonium ion.

Biotech, Wipro,

1 12103

Which of the following is most acidic? (a) C2H5OH (b) CH3CHOHCH3 (c) Ethanol (d) CH3OH.

Wipro,

1 6411

A catalyst (a)always slows down the reaction (b)always starts a rection that would not have ocurred at all otherwise (c)causes changes in the rate of the reaction (d)changes the quantities of the products formed.

Wipro,

1 3825

The rate of the first order reaction depends on the (a) Concentration of the reactant (b) Concentration of the product (c) Time (d) Temperature.

Wipro,

1 3505

What is the most abundant element in the universe ?

Wipro,

1 4798

Integrate 3x + 5 / (x3-x2-x+1)?

Wipro,

2337

If y=cos-1(cosx + 4sinx)/(17)1/2, then dy/dx is ?

Wipro,

1 5610

If the sum of n terms of two series of A.P are in the ratio 5n+4:9n+6 .find the ratio of their 13th terms?

TCS, Wipro,

1 5135

If the letters of the word ?rachit? are arranged in all possible ways and these words are written out as in a dictionary, what is the rank of the word ?rachit?. (a) 485 (b) 480 (c) 478 (d) 481

LG, Virtusa, Wipro,

8 40051

Un-Answered Questions { Biological Sciences }

What is electrophilic addition reaction?

1262

Explain how far can a kangaroo jump?

1086

What are the strange results of yeast two hybrid ?

2139

Explain some examples of migratory animals?

388

What is placenta?

How often can a female rat reproduce?

1082

Explain how many cells are in the average human brain?

922

Explain the synchronization of cancer cells ?

1941

Are PCR primers used for Mycoplasma detection?

1798

Explain muscle cells lysis ?

1954

How is a genetic trait determined by the genetic code within a dna molecule?

1015

How to detect receptor on the cell surface?

1870

What is formula for photosynthesis?

973

why earth have -ve charge

2067

Which are the ways to demonstrate these granules?

1237

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